Public Works Department Tender

Earthing with 25mm x 3mm Copper Tape (upto 14Metre in Length)

Earthing with 25mm x 5mm Copper Tape (upto 14Metre in Length)

COPPER EARTHING (Upto 23 metre in Length): Earthing with electrolytic Copper Tape rivetted (with 5Nos. copper rivets)/Steel Nut & bolts (with 4Nos. 32mm long, 8mm thick with washer and double nut) to 30cm x 120cm x 2mm thick copper plate (made cylindrical) burried 19.50 metre (63.96 feet) below ground level in the hole of excavation having bore dia. 125mm and surrounded by salt & charcoal dust mixture (20 kg.) including fixing the Copper Tape recessed in wall and in floor etc., up to 23metre in Length (including bore Length). G.I. pipe 20mm dia. (A-class), 18metre long should be laid in the hole of excavation 1 feet below ground level and having GI Reducer 50mm x 20mm fixed on the top level of the pipe. 300mm x 300mm x 300mm deep haudi of bricks finished with 1:4 cement plaster and haudi covered with cast iron lid having size 300mm x 300mm around the hole of excavation:-

Earthing with 40mm x 5mm Copper Tape (upto 23Metre in Length)

COPPER EARTHING STRIP (As Additional Length): Fixing additional Length of earthing with Copper Tape (On Surface/Flushed) with petty material as required etc:-

Additional Length 25mm x 3mm thick Copper Tape

Additional Length 25mm x 5mm thick Copper Tape

Additional Length 40mm x 5mm thick Copper Tape

XLPE INSULATED HT ARMOURED CABLES (UNDERGROUND): Supply & laying of Circular Aluminium Conductor screened with extruded semiconducting compound, XLPE insulated, insulation screened with extruded semiconducting combination in combination with copper tape (0.3KA for 1sec.) cores laid up, FR PVC inner sheathed, galvanised steel strip armoured and overall FR PVC sheathed cable confirming to IS:7098 (Part-2), 2011 working voltage 11KV(E) grade to be laid 1.50 meter below ground level including excavation, sand cushioning, covering with sand & bricks and back filling the trench etc., of the required size:-

HT Cable Overall size 35sq.mm (3Core)

Supply & laying of Circular Aluminium Conductor screened with extruded semiconducting compound, XLPE insulated, insulation screened with extruded semiconducting combination in combination with copper tape (0.3KA for 1sec.) cores laid up, FR PVC inner sheathed, galvanised steel strip armoured and overall FR PVC sheathed cable confirming to IS:7098 (Part-2), 2011 working voltage 11KV(E) grade to be laid loose in the existing trench or pipe:-

HT Cable Overall size 35sq.mm (3Core)

S/E of Heat shrinkable cable end termination/ Straigt through joint kit for 11 KVA /6.6 KV (E) XLPE Cables as approved & desired by Enginer in charge:-

Heat Shrinkable End Termination for cable size 35 sq. mm, 3Core (Indoor Type)

Heat Shrinkable End Termination for cable size 35 sq. mm, 3Core (Outdoor Type)

DOUBLE WALLED CORRUGATED (DWC) HDPE PIPES: Supply and erection of Double Walled Corrugated (DWC) HDPE pipe to be laid 1mtr. below ground level including excavation placing the pipe in position and back filling with excavated soil etc. of the required size:-

Double Walled Corrugated HDPE Pipe 120/ 103.5mm (Outer/ Inner dia.)

TRANSFORMER:- Supply, Erection, Testing at site and Commissioning of 11/0.433KV 800KVA 50 Hz OFF Load Tap Changer (+5% to -10% @ 2.5%), Three phase, Mineral Oil type transformer. i) Standard: IS: 2026 and IS 1180 2021 (Part-1) Level 2 with all latest amendmentsii) Losses and Temp. Rise shall be as per IS1180 2021 level 2. i.e. Losses at 50% Load: 2.287KW (Max), and Losses at 100% Load: 6.403KW (Max) iii) Outdoor/Indoor Installation, iv) Vector group: Dyn11 v) Rating: 800 KVA vi) Cooling System: ONAN, vii) Winding: Copper, viii) Magnetic Core: Prime grade of M4 or better ix) High voltage: 11KV-50 Z, x) Low voltage: 433V-50HZ xi) System highest voltage: 12kV at the HV side xii) Manufacturer testing labotatory to be NABL certified for proper control & monitoring of quality & to avoid mixing of Prime core with Second grade/defective core materials xiii) Insulation Level-H.V. Power Frequency (KV rms): 28 kV-H.V. Impulse withstand voltage (KV peak): 75 kVp Tapping: +5% to -10%OFF Load Tap Changer in steps of 2.5%.Temperature rise of Oil/Winding Over design ambient temperature of 50 deg C: 40/45 deg. C xiv) HT Termination - Cable Box xv) LT Termination - Bus Duct and with all accessories ie. first filling of filtered dehydrated oil and confirming to IS & standard accessories required. Note: 1. Following points are to be considered for selection of transformer manufacturer: (i) Te core shall be constructed from high grade, non ageing, prime grade CRGO with M4 grade or better, silicon steel laminations. The core material shall be purchased directly from manufacturer (Posco/Nippon/Novex/AK steels) or from their accredited marketing organisation. (ii) Manufacturer shall ensure that there is no mixing of second grade core. (iii) The core andcore assembly should be dried through a high a high efficent vacuum drying autoclave for heating and drying. (iv) Manufacturer shall test transformer from NABL accredited lab to ascertain the authenticity of test results and Purchaser may test the transformer from CPRI/ERDA officials with their testing equipments.Complete in all repsects as desired by the Engineer in charge of work at site.

VACUM CIRCUIT BREAKER:- Supply, Erection, Testing and Commisioning of 11kV, 3Phase, 50Hz, Indoor metal clad, floor mounted, ‘Horizontal draw out’ type VCB (Vacuum Circuit Breaker) switch board unit 630/800 Amp. which includes 630/800 Amp. Vacuum Circuit Breaker for Incoming/ Out going feeder with Electrolytic Copper bus bars of suitable rating, Horizontal Isolation type as per IEC 62271-100-200. The Switchgear panels shall be internal ARC type made up of powder coated CRCA sheet or ALUZINC not less than 2.5mm thickness for load bearing sections and not less than 2mm thickness for non-load bearing, dust, moisture and vermin proof to provide a degree of protection IP-4X in accordance with IS:13947. VCBs are type tested according to International Standards IEC-62271 at renowned laboratories. They are compact, safe and reliable. The Panels shall be tested for IAC level of 25kA/1 Sec. No. of operations of Vacuum interrupter bottles for better performance (i) At rated current: 10,000 operation (ii) No. of short circuit dead operation at rated short circuit current: 50 opeartion or more VCB parameters are as below: (a). Rated Voltage: 12kV (b). Rated short circuit breaking current withstand : Min. 25kA for 3sec. (c). Rated insulation voltage lightning (Impulse withstand) : At 75kV Peak (d). Rated insulation voltage( Power frequency withstand) : Min. 28kV (e). Rated operating sequence : O-0.3 sec - CO - 3 min-CO (f). Spring charging mechanism : Manually as well as motor operated (230V, AC, 50Hz) (g). Operation type: Manually and electrically open (Electrical-230V, AC,50Hz) (h). Earthing Switch : Mechanically interlocked device to prevent personnel from getting electric shock during breaker maintenance. VCB incorporating mechanical as well as electrical ON/OFF indiaction "OFF" push button, test/ serviceposition limit switches, with minimum 6NO+6NC breaker auxiliary contacts in service position, Manual charging of breaker should be done without opening the front door. Incomer shall consist of: (a). Cast Resin CT's 11kV : 600-300/1-1A, Core1: Class1, 10VA for 3phase, Core2: 5P10, 10VA (b). Cast Resin PT's 11kV : PT Ratio 11kV/√3 / 110V/√3 / 110V/√3, Class 1, Class 0.5 Burden 50VA (c). Protections : Numerical instantaneous IDMTL mimic dispaly relay (230V, AC, 50Hz) : U/V, O/V, E/F, O/C, S/C & TCS with RS 485 Modbus protocol for communication & drawout type (d). Master Trip/ Anti pumping relay (e). Digital Voltmeter : Range 0-12kV with necessary voltmeter with built in selector switch & suitable for 230V AC 96x96 sq.mm dial with shrouded terminal. (f). Digital Ammeter : Applicable Range with necessary ammeter with built in selector switch & suitable for 230V AC 96x96 sq.mm dial with shrouded terminal. (g). Multi-function meter with suitable communication to Central Software dta control & SCADA system, Converter having facility of real time data monitoring, historical trend and web dashboard (h). Necessary AC supply, healthy indication lamp & switch, TNC (Trip, Neutral & Close) breaker control switch with indicating arrangement, Local/ remote selector switch for breaker open/close operations All the relays shall belong to a common platform and shall be of single make with Electro-mechanical type relays in draw-out casing. PCB shall be with conformal coating to withstand heavily polluted environments. Outgoing shall consist of: (a). Cast Resin CT's 11kV : 600-300/1-1A, Core1: Class1, 10VA for 3phase, Core2: 5P10, 10VA (b). Protections : Numerical instantaneous IDMTL mimic dispaly relay : E/F, O/C, S/C & TCS with RS485 Modbus protocol for communication & drawout type for line feeder protection (c). Master Trip/ Anti pumping relay (d). Transformer Protection : 3 elements auxiliary relay (230V, AC, 50Hz) for transformer fault, Alarm for Buchholz, winding temperature & oil temperature (e). Digital Ammeter : Applicable Range with necessary ammeter with built in selector switch & suitable for 110V AC 96x96 sq.mm dial with shroded terminal (f). Multi-function meter with suitable communication to Central Software dta control & SCADA system, Converter having facility of real time data monitoring, historical trend and web dashboard (g). Necessary AC supply, healthy indication lamp & switch, TNC (Trip, Neutral & Close) breaker control switch with indicating arrangement, Local/ remote selector switch for breaker open/close operations All the relays shall belong to a common platform and shall be of single make with Electro-mechanical type relays in draw-out casing. PCB shall be with conformal coating to withstand heavily polluted environments:- 11kV, 3Phase, 50Hz, Indoor metal clad, floor mounted, ‘Horizontal draw out’ type VCB (Vacuum Circuit Breaker) Switch board unit 630/800 Amp. which includes 1 No. 630 /800Amp. Vacuum Circuit Breaker as Incomer, 2Nos. Vacuum Circuit Breaker as Outgoing feeder with in built power packs interconnected with Electrolytic Copper bus bars of suitable rating.

LT PANEL:- Designing, Supply, Erection, Testing & commissioning of indoor Type LT cubical panel (TTA) enclosure (dust, vermin and interchangeable modules with facilites for extensions or reduction as per the space or requirments). The Panel shall be suitable for operation at 415+6% Volts, 50HZ, Rated Impulse Voltage- 12 KV, 3 phase 4 wire & earth system. Panel has to be certified for Internal Arc test for 50 KA at Horizontal Busbar, Vertical Busbar and Cable chamber and Mechanical Impact IK10.The assembly manufacture should be ISO approved and CPRI tested for short circuit of (minimum 50kA) as well as IP degree of protection(IP42). Fabrication: Panel shall be made from 14/16 SWG CRCA sheet, conforming to IEC61439 (Part 1&2). The fabrication should be such that all the member i.e. vertical/horizontal should be detachable type i.e. total bolted. In case of any changes required at site should be possible then and their self without any cutting or welding. The fabrication of the panel in 3B IP2 X (touch proof) protection (even after opening the feeder compartmentdoor. ) fully compartmentalized type i.e. bus bar channel as well as the cable chamber should be totally isolated from the feeder chamber,The compartmentalization to be achieved by using metal separators, use of PVCsheet/ Hylem sheets shall not be allowed. Where the crossing of the wire or bus link should have proper rubber gourmets or non-hygroscopic material. No live part should be in visible condition. The base channel will be made out of 75mm x 40mm x 5mm rolled channel. "The door should be double folded without edge and the gasket should be ‘S’ type puffed neutral rubber gasket for long life. The hinges of the door should be bolted type with double hole arrangement. The panel door lock should be quick openable type spring loaded. There should not be any special tool or key to open the lock. Minimum depth 400mm / wide 300 mm for busbar/ Cable ally at the front of the panel. The panel will be free standing floor mounting type having provision for cable entry from bottom/top with cable glands etc. Painting: The sheet metal is sprayed with corrosion resistant etch Primer. The finishing treatment shall be applicable with air drying paint (7/9 tank Powder coated process should present in company pemises) after necessary putty work. Busbars: The panel shall be provided with TPN Aluminium Bus-Bar of E91E Grade. of suitable size according to the size of MCCB's. All Busbar will be air insulated with codified in Red, Yellow, Blue & Black as per standard for cable termination with the help of extended busbar only with proper adjustable cable supports. The main busbar would be supported upon non-hygroscopic SMC/DMC supports.Metering: The panel shall be completed with digital metering unit (with selector switches, voltmeter &ammeter) epoxy insulator, gasket, PVC sleeves, CT's & L.E.D. type indicator etc. Manufacturer of Panel should be CPRI Approved (Approval not older then 5 years) & ISO certified (Manufacturer workshop as per ISO 9001: 2015 standard). LV Switchboards shall be certified by 3rd party Certification body as per IEC 61439-(Part1- 2).Test reports without certificate shall not be considered admissible proof of compliance.The Certifying Authority shall be qualified under ISO/IEC 17065 as per IEC 61439-1.Certified design of switchboards shall be proven design from OEM (Original Equipment/ Switchgear Manufacturer). OEM name should be mentioned on top of each column of switchboard. Also, OEM Partnership Certificate shall be furnished by Panelbuilder.Switchboard configurations offered shall be CPRI/ Independent international test house tested for all the 12 type tests as per IEC61439-1-2 and to provide certificate against each panel rating and internal arc tests. Copies of the test certificates shall be submitted with the tender.The authorization certificate of principal /switchgear manufacturer should be attached by concerned contactor/ panel builder, The Concerned contactor shall be approved the detailed drawing of panel with complete specification from the Engineer in charge at site. Detail of capacities of ACB/MCCB's to be installed in the cubical panel Enclosure (including the cost of ACB/MCCB's+E.R.H.) as per following. Incomer: Air circuit-breaker of suitable ampere rating at 415V, 50Hz, 4 Pole Electrical draw-out type with inbuilt microprocessor based trip sytem with thermal memory, zone selective interlocking, pre trip alarm, individual fault indicating LED, O/C, S/C, Instantaneous & E/F internal protection, Impulse withstand voltage 12kV, rated insulation voltage 1000V, rated operational voltage 690V, fully rated neutral, protection against overload & shortcircuit with setting at 50%-100%-OFF, suitability for isolation as per IEC 60947-2. The ACB should be capable for recording 10 fault history, LCD Display of current & voltage, Icu = Ics = Icw (1 Sec.) = 50kA with no derating upto 50 degree celcius on the existing industrial panel (With terminal adapter on load and line side of breaker), including bonding to the existing earth and making necessary connections with suitable size of thimbles as required by the Engineer-in-Charge at site and as per PWD General Specifications. Transformer-1: (800KVA) 1250 Amp.415volts 50KA, 4P EDO ACB = 1No. Under Voltage Release 220VAC for ACB Interlocking Bus Coupler: 1250 Amp.415volts 50KA, 4P EDO ACB = 1No. Under Voltage Release 220VAC for ACB Interlocking Transformer-2: (800KVA) 1250 Amp.415volts 50KA, 4P EDO ACB = 1No. Under Voltage Release 220VAC for ACB Interlocking INTERLOCKING: Both incomer and Buscoupler electricaly interlocked at a time two breaker can be operate. (Electrically & Mechanical Interlocked) Outgoings from Transformer-1, 800KVA.: ■ 630amp. 415 volts breaking capacity ≥36kA, FP microprocessor based adjustable thermal an magnetic protection MCCB unit = 2Nos. ■ 400amp. 415 volts breaking capacity ≥36kA, FP microprocessor based adjustable thermal and magnetic protection MCCB unit = 2Nos. ■ 250amp. 415 volts breaking capacity ≥36kA, FP microprocessor based adjustable thermal and magnetic protection MCCB unit = 1No. ■ 63-100amp. 415 volts breaking capacity ≥25kA four pole fixed magnetic & adjustable thermalsetting MCCB unit = 2Nos. Outgoings from Transformer-2, 800KVA : ■ 1000 Amp.415volts 50KA, 4P EDO ACB = 1No. (As per PWD Specifications) ■ 400amp. 415 volts breaking capacity ≥36kA, FP microprocessor based adjustable thermal and magnetic protection MCCB unit = 1No. ■ 250amp. 415 volts breaking capacity ≥36kA, FP microprocessor based adjustable thermal and magnetic protection MCCB unit = 3Nos. ■ 63-100amp. 415 volts breaking capacity ≥25kA four pole fixed magnetic & adjustable thermalsetting MCCB unit = 2Nos. All Incomers & Out going With Extendable Rotary Handle with adjustable depth complete as per schematic diagram attached & Satisfaction of the Engineer in charge at site. Enclosure: Panel Size: As per Norms

Design, supply, installation, testing and commissioning of APFC Panel of 270-285 KVAR capacity with 7%detuned reactor suitable for operation on 415 ± 5% Volt, 3 Phase, 50 Hz, Ac supply, having MPP type resin bounded static capacitors (without oil) of suitable rating complete with MCCB Four Pole 400amp., 415volts, ≥36kA Microprocessor Based Adjustable Thermal and Magnetic Setting (Ics = 100%) capacity panel, 12stepmicroprocessor based power factor controller relay capable to select the rating from 1No. x 5KVAR, 2No. x 15KVAR, 6No. x 25KVAR, 2No. x 50KVAR capcitor bank, current limiting contactors for each capacitors protected with suitable rating MCCBs of minimum 25 KA breaking capacity having thermal magnetic release for over load & short circuit protection, cooling fans for panel and digital multifunction meter, Class-1.0 with RS485 communication port indicating lights, earthing the panel etc. as reqd. The panel should have provision of timer based circuit in APFC relay to switch ON and OFF the static part of 270-285 KVAR capacity, automatically as and when required. Capacity of static capacitor should be accommodated fromthe overall rating of the panel and should be designed to switch in independently. The panel should bemanufactured with1.6 mm thick CRCA sheet duly powder coated etc complete as per PWD specification complete as per satisfaction of the Engineer in charge at site.

SANDWICH BUS DUCT (TRANSFORMERS TO MAIN LT PANEL) Supply, Installing testing and commissioning of 1250A, 3P + 100% Neutral, 50KA For 1 Sec, Sandwich Bus trunking Straight Feeder Length, Aluminium Conductor, IP 55 with GI Enclosure in 1.5mm Thick. continuous earthing with 2 Nos integral earth conductor and Suspension Hanging system etc along with erection of the same with connections, testing etc. complete in all respects as approved and desired by the Engineer-in- charge at site.

Supply, Installing, testing & commissioning of Elbow vertical /Horizontal /off set Bend 1250Amp / 3P+1N+E (Only fabrication charges) etc.along with erection of the same with connections, testing etc. complete in all respects as approved and desired by the Engineer-in-charge at site.

Supply, Installing Flange End Unit 1250 Amp (Fabrication Charges only) complete with hardware-nuts and bolts etc.along with erection of the same with connections, testing etc. complete in all respects as approved and desired by the Engineer-in-charge at site.

Supply, installation, Copper Flexible 1250Amp (1 Set of 4Nos. Copper Flexible) complete with hardware- nuts and bolts etc.along with erection of the same with connections, testing etc. complete in all respects as approved and desired by the Engineer-in-charge at site.

Supply, installation, of Adopter Box/tap off box for Transformer side and panel side 1250 Amp. etc.along with erection of the same with connections, testing etc. complete in all respects as approved and desired by the Engineer-in-charge at site.

Supply of Rubber hand gloves suitable for 11KV.

Supply & fixing of shock treatment chart both in Hindi & English for treating person suffering due to electric shock mounted on wall hooks.

Providing and fixing H.T. danger notice plate of 250 mm x 200mm, made of mild steel at least 2mm thick and vitreous enamelled white on both sides and with inscription in single red colour on front side as required.

Providing and fixing M.V. danger notice plate of 200 mm x 150mm, made of mild steel at least 2mm thick and vitreous enamelled white on both sides and with inscription in single red colour on front side as required.

Providing and fixing of Carbon dioxide (CO2) type fire extinguishers conforming to IS 2878-1976 and cylinder fully charged of 4.5 Kg capacity

Providing of set of 4 Nos. 9.5 Litre capacity GI bucket painted in post office red colour with prior coat of red - oxide paint and written with white paint 'Fire' and mounted on MS angle iron frame with bracket of appropriate size and capacity including filling sand etc.

Supply and fixing of foam fire extinguishers, Portable ABC type 6Kg capacity hanged on wall with bracket component as required.

Supply of First Aid box as approved by St. John Ambulance Brigade / Indian red Cross conforming to IS 2217 -1963

Supply & fixing of fire retardant/ extinguishing Electrical insulated synthatic mat 1Mt. x 2Mt. of 2.0 mm thick +/- 10% confirming to BIS: DOC NO. ET-02 (5440) meeting requirments of IS: 15652 :2006 (with upto date amendment), suitable for all voltages not exceeding 3.3 KV and having minimum width of 1000 mm +/- 20mm and including supply of required quantity of adhensive/ compound and fixing the same at size as per site requirments.

Supply & fixing of fire retardant/ extinguishing Electrical insulated synthatic mat 1Mt. x 2Mt. of minimum 3.0 mm thick +/- 10% confirming to BIS: DOC NO. ET-02 (5440) meeting requirments of IS: 15652 :2006 (with upto date amendment),, suitable for all voltages not exceeding 33 KV and having minimum width of 1000 mm +/- 20mm and including supply of required quantity of adhensive/ compound and fixing the same at size as per site requirments.